package com.ly.algorithm.leetcode;

import java.util.Arrays;

/**
 * @Classname Problem344
 * @Description
 * 编写一个函数，其作用是将输入的字符串反转过来。输入字符串以字符数组 char[] 的形式给出。
 *
 * 不要给另外的数组分配额外的空间，你必须原地修改输入数组、使用 O(1.txt) 的额外空间解决这一问题。
 *
 * 你可以假设数组中的所有字符都是 ASCII 码表中的可打印字符。
 *
 * 示例 1.txt：
 *
 * 输入：["h","e","l","l","o"]
 * 输出：["o","l","l","e","h"]
 * 示例 2：
 *
 * 输入：["H","a","n","n","a","h"]
 * 输出：["h","a","n","n","a","H"]
 *
 * @Date 2020/10/8 11:45
 * @Author 冷心影翼
 */
public class Problem344 {
	public static void main(String[] args) {
		char[] s = {'h','e','l','l','o','o'};
		char[] s2 = {};
		Solution344 solution344 = new Solution344();
		solution344.reverseString(s);
		System.out.println(Arrays.toString(s));
	}
}


class Solution344 {
	public void reverseString(char[] s) {
		for(int i=0;i<s.length/2;i++) {
			char temp = s[i];
			s[i] = s[s.length-i-1];
			s[s.length-i-1] = temp;
		}
	}
}